Effects of adrenergic drugs on raphe unit activity in freely moving cats.
Effects of adrenergic drugs on raphe unit activity in freely moving cats.
复制标题
肾上腺素能药物对自由活动猫中缝单位活性的影响。
DOI:
10.1016/0014-2999(81)90521-5
复制
发表时间:
1981
影响因子:
5
通讯作者:
Jacobs,BL
中科院分区:
文献类型:
--
作者:
Heym,J;Trulson,ME;Jacobs,BL
Previous work has suggested that central noradrenergic neurons may have an important influence on the activity of serotonergic neurons located in the dorsal raphe nucleus. Pharmacological studies have indicated that an α-adrenergic input is necessary to maintain the activity of these raphe cells. This issue was examined in freely moving cats by studying the effects of adrenergic drugs on raphe unit activity. Systemic administration of the selectiveα1-antagonists WB4101 (0.5 and 1.0 mg/kg) or prazosin (10 mg/kg), or the non-competitive antagonist phenoxybenzamine (10 mg/kg), produced strong behavioral effects but had little effect on raphe unit activity. A low dose of the α-agonist clonidine (0.05 mg/kg), which decreases adrenergic transmission, produced similar results. These same drugs also had negligible effects on the evoked responses of raphe units to auditory or visual stimulation. Administration of d-amphetamine, a catecholamine releaser, produced behavioral stereotypy but had no significant effect on the discharge of raphe units. These data suggest that the adrenergic influence on serotonergic raphe neurons is very small in the freely moving cat. This is in contrast to the reported complete suppression of unit activity produced by α-adrenergic blockade in the chloral hydrate anesthetized rat.
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影响因子:
6.1
作者:
Grant,SJ;Huang,YH;RedmondJr,DE
通讯作者:
RedmondJr,DE
影响因子:
2.9
作者:
Susan R. White;R. S. Neuman
通讯作者:
R. S. Neuman
影响因子:
4.7
作者:
BARABAN, JM;AGHAJANIAN, GK
通讯作者:
AGHAJANIAN, GK
影响因子:
2.5
作者:
S. Mosko;B. Jacobs
通讯作者:
B. Jacobs
DOI:
--
发表时间:
1978
期刊:
The Journal of comparative neurology
影响因子:
--
作者:
D. Poitras;A. Parent
通讯作者:
A. Parent